The Washington Navy Yard gunman who killed 12 people on Monday has previously claimed to be suffering from PTSD after helping rescue efforts in New York following the 9/11 terror attacks.
Gunman Aaron Alexis was shot dead by responding officers after he opened fire inside a Navy facility around 8:00 a.m. on Monday morning.
Since he was identified as the shooter, reports have revealed that it was not the first time he was involved in a shooting.
And it also emerged that he used three guns during the massacre, one of them an AR-15 semi-automatic rifle - the same weapon used in the Sandy Hook and Aurora mass shootings.
In 2004, Alexis was arrested in Seattle for shooting the tires of a construction worker's car during what he later called an anger-fueled 'blackout.'
'He said that he didn’t remember pulling the trigger of his firearm until about one hour later,' according to the Seattle police report.
Later he said that he felt the intended victim 'disrespected' him.
The shooter's father told police 'that his son had experienced anger management problems that the family believed associated [sic] with PTSD.'
He was arrested in relation to that incident but never charged, an outcome repeated in Fort Worth, Texas where Alexis was living in 2010. Read more here
